package java201521123009;
import java.util.Scanner;
public class main {


		public static void main(String[] args) {

	        Scanner scan = new Scanner(System.in);
	        while (scan.hasNextInt()) {
	            int a, b;
	            a = scan.nextInt();
	            b = scan.nextInt();
	            if (a > 1000)
	                System.out.println("a<=1000");
	            else
	                System.out.println(a + b);
	        }
	}
	}


